| http://www.w3.org/ns/prov#value | - Central shaft 302 and/or outer sleeve 304 may be fabricated from any one of or a combination of materials including and not limited to, NITINOL (e.g., nickel-titanium alloys), polyurethane, polyester, and/or polymethylsiloxane material (PDMS), fluorinated ethylene-propylene (FEP), polytetrafluoroethylene (PTFE), nylon, etc.
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